Cheap flights from Washington to Boise from $79

The month of October is, on average, the cheapest month to fly to Boise from State of Washington, with most prices found around $59. If you aren’t able to travel during the month of October, then book flights to Boise from State of Washington during September instead. Flights to Boise in September, while not as cheap as those in October, still average around $59.

Our data shows that Saturday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $197. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $317. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.

Our data shows that the cheapest State of Washington to Boise flights are usually those with departure times at noon. Our users have found flights to Boise at noon for as low as $208. In the evening is when there is more demand to fly to Boise, so prices are often more expensive at around $222 per ticket.

Fly from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld for the best Washington - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $206 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from State of Washington for as low as $159 on momondo.

Southwest, United Airlines, and Alaska Airlines are the most popular carriers operating from Washington to Boise Air Term. Gowen Fld

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Boise from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Boise. Keep in mind that there are 3 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.

As of May 2026, there are 31 flights per day flying from State of Washington to Boise. The most common time of day flights depart is 7:00PM, with 35% of flights taking off in the evening.

As of May 2026, there are 221 flights per week flying from State of Washington to Boise. The most common day of the week flights depart is Mon, with 22% of flights taking off on this day.